Home / 305,426.57-458,121.15-136,901.61

Finding the Fourth Proportional to 305,426.57, 458,121.15 and 136,901.61

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Solution

The fourth proportional to 305,426.57, 458,121.15 and 136,901.61 is: 205,344.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,426.57 : 458,121.15 = 136,901.61 : x
  2. Step 2: Convert to fraction form
    305,426.57/458,121.15 = 136,901.61/x
  3. Step 3: Cross multiply
    305,426.57x = 458,121.15 × 136,901.61
  4. Step 4: Simplify right side
    305,426.57x = 62,717,523,010.05
  5. Step 5: Solve for x
    x = 62,717,523,010.05/305,426.57
  6. Step 6: Final answer
    x = 205,344.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.